>>55121439same applies for gardevoir to the japs. Gardevoir's jap name is Sir Knight, but even its english name Garde as in En Garde, Devoir as in duty.
It's androgynous because elves are and it's based on japanese depictions of western fantasy elves: pale skin, pointy ears, green hair, even white and green clothing.
Compare Sylphie, Archer from Goblin Slayer, Meneldor, etc.
What we assume to be a flowing dress is actually wizard robes.
Even the smash trophies go out of their way to point out that while it's "elegant and effeminate" that both genders of gardevoir exist.
They presumably feel the same way about Kirlia (could just be a feminine boy with long hair) because its GO costume has a bowtie and bowler hat.
Gallade, japan name Earllade? Markedly more masculine.
And then Iron Valliant is markedly more feminine even than gardevoir, with its hourglass shape and ponytails, while still having the gallade warrior aesthetic.